Pliers



Patented Sept. 18, A1928.

UNI-TED sr'rarrs y insana' PATENT' orner.A

VALLTER. M.` NE1KIRK,.OE FADUCAH, KENTUCKY, ASSIGNQR, TO SOUTHERN MACHINERY COMPANY,.OE PADUCAH,.KE1\TTCKY, A GORPORTIONOF KENTUCKY., f'

PLIER-S.

Application lerl MayV il,

vThis invention relates vto improvements in pliers.

The primary object of the invention is toa comparatively strongtool `that will stand up eieiently under heavy uses. j i In the accompanying drawings,' I VFigure 1 is a plan view of the tool adjusted so as to beusedas pliers; f

Fig. 2. is a sectional view on the line 2 2 ot'Fig. 1.

Fig.. 3 isa plan View of the' tool adjusted for use asa wrench. M

Fig. 4f is a: sectional view' on the line i4-i ot'Fig. 31 Fig. 5 isa Fig. 1. y

While the handlesandjaws of the tool need notbeof' 'any specific formation the tool, in the present" instance, is" illustrated as coniprising the handles 10, 11', what might be termed for convenience,body portions 12 and 13`which terminate Vin theA jaws 14C. The body portions 12, 13 cross each other, being provided with elongated slots 15 through which the pivot pin 16 extends. The slots 15 are elongated in order to permit adjustment of the jaws toward and from each other when the tool is to be used as a wrench as will heref/inafter be explained, but when the tool is used as pliers the pivot pin 16 must be held stationary in said slots. For this purpose one face of each jaw is countersunk or recessed at one end of its slot 15. This recess is shown at 17 in the outer faces of said body sectional view'ion line 5-I5` off portions 12, 13. Preferably, the pivot piny has a portion of its shank 'formed with parallel sides 18 which engage the walls of slot 15 iii handle 11 so as to prevent said pin turning and adjacent parallel side portion 18y the end of said pin is Jformed with an integral enlarged head 19 adapted to seat in the recess '17 in the body portion of said handle. The opposite end of said pin is threaded for the reception of a nut 20, preferably a butterfly nut, which is adapted to be screwed down so that a portion thereof is entered in the recess 17 of the body portion of handle 10. The nut 20 forms an enlargement at one end of the pivot pin and the integralheadl 19 forms an 19m. serial.' No. 188,774'.

cesses 17 in the outer faces of the handles 'saifdV pin will be held against longitudinal inove` ment -i'n the slots 15 while, at'the same` time, handle 10 will be free to pivot on the'circular portion 21 `of 'the pinv shank intermediate the'screw threaded portion and the portion which is formed at parallel sides.y 4 In order to permit the tool to be converted into a wrench the contaetingtaces ofthe handles at' ther point where theirbody portions cross caca other are formed with means for preventing saidhandles turning on their pivctpin.` When used as a wrench it is essential that the jaws be maintained parallel to each other vand rigid. For this-reason said contacting faces are preferably formed with plurality of rios- 22 forming acorrespond-V ing series oit recesses 23- between them. These ribs and recesses extend transversely of slots 15' and'when the tool isused as pliers the ribs ofone handle are disposed transversely of' those of the other whereby, when the jaws oit the pliers are opened and closed theribslon one jaw'fsimplyrideon-those of theother. Howeveiafwhen it is Vde'siredt'o convert the tool into Val wrench, nut: 2O is backed partially oil oft the pivot pin 16 so thatv the enlarge`` ments may be withdrawn from recesses 17. The handles are then turned with respect to each other until the, ribs 22 on one handle register with and seat in the recesses 23 in the other handle. After the handles have been placed in this position, nut 20 is then screwed tight on pin 16 kso that the twol handles are firmly clamped together. By havin removed the head 19 and nut 2,0 of the recesses in the outer faces of the handles the pivot pin 16 is tree to move longitudinally of 'the slots 17 so that the jaws 14 may be adjusted toward'and from each other.` lt will be noted that the jaws lie parallel to one another and the extent to which they may be adjusted toward and from each other is limited solely by the width of the body portions oi' the two handles. lt will be understood that nut 20 will have to be released slightly `whenever it is desired to adjust the jaws or the wrench toward and from each other.

W ith the present constructionv the pliers are capable of use as any ordinary pliers and when the tool has been converted int-o `a wrench it will be found that. it will stand severe uses, all strains which tend to turn the jaws with respect to each other When the tool 1s used as a Wrenchbeing imposed upon the ribs 22 which, it will be' appreciated, are of such construction as to withstand tremendous strains. The only pressures exerted on the pivot pin are those which are utilized in clamping t-he two handles together. By reason of this arrangement it will be found that the tool, as ya Wrench, `is very strong. Furing slots therein adapted to register with each other, a. pivot pin extending through and slidable longitudinally in said slots, means for preventing longitudinal movement of the pin in said slot when the tool is to Vbe used as pliers, and means on said body portion for i reventinff the same turning on said ivot p in when the tool is to be used as a Wrench.

Y 2. In a tool designed Jfor use as pliers or` as a wrench, a. pair of handles extending across each other, a jaw member on each handle, the crossing portions of said handles having registering slots therein, a pivot pin extending through said. slots, means for preventing sa-id pin moving longitudinally of the slots'when the toolis used as pliers, and

v means `formed integrally on said crossing portions of the handles for preventing said handles turning on the pivot pin when said tool is used as a Wrench.

3. In a tool designed for use as pliers or as a Wrench, a pair of handles extending" across eachother and having registering slots therein, a jaw on each handle, a pivot pin movable longitudinally of said slots, means for preventing movement of the pin in the slots When the tool is used as pliers, the contacting surfaces of'crossing portions of said handles having ycooperating projections and recesses therein for preventing the `handles turning on the pivot pin when the tool is used as a wrench. f i

4. In a tool designed for useas pliers 0rV as a Wrench, ,a pair of crossedv handles, a Jawon each handle, a pivot pin on which said handles may turn, the crossed portions of said handles having ribs and elongated recesses formed integrally therewith whereby turning may be prevented by placing said ribs in said recesses.4

5. In a tool designed for use as pliers or as a Wrench, a pair of crossed handles havingslots therein, a pivot pin in said slots, "a jaw on each handle, one face of each handle being recessed at one end of the slot therein, en-

largementsonthe ends of the, pin engageable i in said recesses in the handles toprevent movement of said pin'lon 'tudinally in said Y' slots when the tool is use as pliers, andcooperating slots andribs in the other faces of said handles, engageable with each other to prevent said handles turning on saidA pivot pin when the tool is used as a Wrench.

WALTER NEiKIBir L 

